US7249426B2 - Footwear structure - Google Patents

Footwear structure Download PDF

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Publication number
US7249426B2
US7249426B2 US10/416,266 US41626603A US7249426B2 US 7249426 B2 US7249426 B2 US 7249426B2 US 41626603 A US41626603 A US 41626603A US 7249426 B2 US7249426 B2 US 7249426B2
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US
United States
Prior art keywords
footwear structure
sole
structure according
insole
fitting means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/416,266
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English (en)
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US20040148804A1 (en
Inventor
Calvani Romano
Bacchiega Flavio
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Individual
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Individual
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Publication of US20040148804A1 publication Critical patent/US20040148804A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/26—Footwear characterised by the shape or the use adjustable as to length or size
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • A43B23/027—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly flexible, e.g. permitting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

  • the present invention relates to a footwear structure, which is particularly suitable for leisure or sports activities.
  • a given footwear article is not likely to fit the user's foot comfortably for very long. In some cases, such footwear article is barely worn before it no longer fits the user's foot. To prevent this, such footwear article can be bought in a larger size. But in this case, the user may slide frontward and backward inside the footwear structure with a reduced comfort.
  • foot size may include, for example, weight gain, weight loss, water retention or diseases.
  • a footwear structure of a certain size could be no more comfortable for the user, who is thus obliged to buy another more comfortable article of footwear.
  • adjustable fit footwear articles are disclosed in U.S. Pat. No. 5,325,614 and U.S. Pat. No. 6,138,385.
  • adjustable means which can be operated by the user, are adopted to change the size of the footwear article.
  • these footwear structures have the drawback of being provided with a relatively complex structure, thereby entailing relatively high production costs.
  • the main aim of the present invention is to provide a footwear structure, which can be worn in maximum comfort also by feet of different shapes and sizes and which is relatively simple in its structure.
  • Another important object of the present invention is to provide a footwear structure, which can be fabricated with relatively low manufacturing costs.
  • FIGS. 3–4 are a different views of a preferred embodiment of the footwear structure, according to the present invention, worn by feet of different sizes;
  • FIGS. 5–6 are exploded views of different embodiments of the sole of the footwear structure, according to the present invention.
  • FIGS. 7–11 are schematic top views of various embodiments of the sole of the footwear structure, according to the present invention.
  • FIG. 12 is a cross section view of another preferred embodiment of the footwear structure, according to the present invention.
  • reference number 1 designates a footwear structure, according to the present invention.
  • Such footwear structure 1 comprises an upper 2 associated, at the bottom, to a sole 3 .
  • the footwear structure 1 is provided with self adjustable fitting means, which are associated to the upper and the sole 3 , for accommodating the footwear structure 1 to the size of a user's foot. This is obtained by means of inducing co-operating resilient deformations of the upper 3 and the sole 2 .
  • the first regions 20 , 201 may be associated to one or more second regions 21 , 211 , variously shaped, fabricated in materials presenting reduced tension set.
  • the upper 2 may be advantageously provided with known type of fastening devices 4 , usually located in the area of the upper surface of the foot or the instep.
  • the fitting means may advantageously comprise also third regions 30 of the sole 3 , which are at least partially made of a resiliently deformable material.
  • the third regions 30 may comprise, for example, a first layer 5 , fabricated in waterproof resiliently deformable material, preferably presenting a high resistance to perforation and abrasion.
  • materials such as rubber or a resiliently deformable fabric provided with a weft that is combined with threads in materials presenting high strength, such as the material known by the brand name “KEVLAR®”.
  • the bottom of the first layer 5 is preferably associated to one or more separate layers in contact with the ground, which advantageously comprise a plurality of inserts 6 possibly fabricated in a rigid or semi-rigid plastic material.
  • the inserts 6 being in contact with the ground, present advantageously characteristics of high resistance to perforation and a high resistance to abrasion.
  • the arrangement of the inserts 6 on the first layer 5 may be the most suitable in relation to the characteristics of deformability required by the sole 3 .
  • Such inserts 6 may be arranged according to a layout defining a plurality of grooves 7 , which allows an easy deformation of the sole 3 .
  • the inserts 6 may be associated with the first layer 5 through stitching with rubber thread or with traditional non-elastic thread.
  • the arrangement of the inserts 6 on the first layer 5 allow excellent deformability of the sole 3 both in a transverse and especially in a longitudinal direction (see FIG. 4 ).
  • the inserts 6 may also be glued to the first layer 5 , or over-injected, or also made one with the same, for example through a single injection moulding operation of plastic material.
  • the sole 3 comprises advantageously also a pliable region 15 , which is obtained approximately transversely near the toe portion 110 of the footwear structure 1 .
  • the footwear structure according to the present invention is therefore characterised in that the sole 3 has a pliable region 15 in proximity of its toe end, said pliable region 15 allowing a bending of the toe portion of the upper with a consequent change of its overall longitudinal dimension so as to accommodate the internal volume of the footwear structure to the size of a user's foot.
  • the first regions 20 of the fitting means exert a resilient stress on the toe portion 110 on a predefined direction aimed at lifting up the toe portion 110 from the ground (see arrow 200 ).
  • the third regions 30 (particularly in the pliable region 15 ) allow an easy bending of the sole 3 , approximately in the same predefined direction 200 , on which the resilient stress is exerted by the first regions 20 .
  • the interconnection between the upper 2 and the sole 3 may be suitably accomplished through the bending and fixing of the side edges 80 and 81 of the upper 2 , along the upper surface of the sole 3 .
  • Such kind of interconnection allows to maintain substantially unchanged the resilient characteristics of the footwear structure 1 and may therefore be accomplished, for example, by stitching, using a thread made in elastic material, or through gluing of the side edges 80 and 81 on top of the first layer 5 , or with a combination of the two techniques. It is advisable that the parts are glued together using non-crystallising glue, since such process of crystallisation may lead to a reduction, sometimes considerable, in the characteristics of resilience of the materials in contact.
  • the use of the layer 13 allows to achieve (in co-operation with the resilient action exerted by the first regions 20 ) a comfortable lateral fit of the upper to the user's foot, even if the size/shape of the user's foot varies remarkably.
  • the second fitting means are positioned at the front of the second insole, in correspondence of a portion 11 of the toes and may comprise two or more notches 12 , suitable for giving the second insole 10 the possibility of varying its longitudinal extension, thereby allowing free elongation of the footwear structure 1 .
  • the second insole 10 may be shaped in such a way as to present a desired number of notches, variously positioned, as illustrated in FIG. 9–11 .
  • the second insole 10 may also have a suitable profile, in which a block or a gentle protuberance (not shown) in the foot arch region are accentuated, thereby making it more comfortable for the user.
  • the force exerted by the first fitting means induce the footwear structure 1 to accommodate its internal volume to the shape/size of the user's foot.
  • the fitting means are self adjustable since they exert their action of resiliently deforming the upper 2 and the sole 3 according to the shape/size of the user's foot without the need of being operated by the user.
  • the first fitting means make the upper 2 clinging immediately to the foot shape and make the toe portion 110 bending upward to decrease the length of the footwear structure 1 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
US10/416,266 2001-08-03 2002-08-01 Footwear structure Expired - Fee Related US7249426B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTV2001A000107 2001-08-03
IT2001TV000107A ITTV20010107A1 (it) 2001-08-03 2001-08-03 Struttura di calzatura
PCT/EP2002/008626 WO2003013301A1 (fr) 2001-08-03 2002-08-01 Structure d'article chaussant amelioree

Publications (2)

Publication Number Publication Date
US20040148804A1 US20040148804A1 (en) 2004-08-05
US7249426B2 true US7249426B2 (en) 2007-07-31

Family

ID=11460114

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/416,266 Expired - Fee Related US7249426B2 (en) 2001-08-03 2002-08-01 Footwear structure

Country Status (7)

Country Link
US (1) US7249426B2 (fr)
EP (1) EP1411792B1 (fr)
AT (1) ATE292902T1 (fr)
DE (1) DE60203716T2 (fr)
ES (1) ES2242878T3 (fr)
IT (1) ITTV20010107A1 (fr)
WO (1) WO2003013301A1 (fr)

Cited By (17)

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US20060225186A1 (en) * 2005-04-11 2006-10-12 Davenport Ronald K Ergonomic bed/slipper-sock
US20090193685A1 (en) * 2008-01-31 2009-08-06 Patient Pedro Llc Flexible footwear
US20090208113A1 (en) * 2005-06-27 2009-08-20 Comodo Technologies, Ltd. Automated shoe fitting using shoe and adapter system
US20090249648A1 (en) * 2007-07-09 2009-10-08 Brown Ashley J Golf shoe outsole
US20120174433A1 (en) * 2011-01-10 2012-07-12 Saucony, Inc. Articles of Footwear
USD674582S1 (en) * 2011-04-08 2013-01-22 Wiley L. Day, Jr. Shoe sole
USD674583S1 (en) * 2011-04-08 2013-01-22 Wiley L. Day, Jr. Shoe sole
USD675001S1 (en) * 2011-04-08 2013-01-29 Wiley L. Day, Jr. Shoe sole
USD674999S1 (en) * 2011-04-08 2013-01-29 Wiley L. Day, Jr. Shoe sole
USD675000S1 (en) * 2011-04-08 2013-01-29 Wiley L. Day, Jr. Shoe sole
USD674998S1 (en) * 2011-04-08 2013-01-29 Wiley L. Day, Jr. Shoe sole
USD675409S1 (en) * 2011-04-08 2013-02-05 Wiley L Day, Jr. Shoe sole
USD675410S1 (en) * 2011-04-08 2013-02-05 Wiley L. Day, Jr. Shoe sole
USD679901S1 (en) * 2012-08-21 2013-04-16 Skechers U.S.A., Inc. Ii Shoe bottom
US9750303B2 (en) 2013-03-15 2017-09-05 New Balance Athletics, Inc. Cambered sole
US20170280822A1 (en) * 2016-04-01 2017-10-05 Nike, Inc. Article of footwear with adaptive fit
US20180220733A1 (en) * 2011-08-10 2018-08-09 Gavrieli Brands LLC Split-Sole Footwear

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US20060130363A1 (en) * 2004-12-17 2006-06-22 Michael Hottinger Shoe sole with a loose fill comfort support system
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US8312645B2 (en) 2006-05-25 2012-11-20 Nike, Inc. Material elements incorporating tensile strands
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US7546698B2 (en) 2006-05-25 2009-06-16 Nike, Inc. Article of footwear having an upper with thread structural elements
US8312646B2 (en) 2006-05-25 2012-11-20 Nike, Inc. Article of footwear incorporating a tensile element
US8904671B2 (en) 2006-05-25 2014-12-09 Nike, Inc. Footwear incorporating a tensile element with a deposition layer
US7870681B2 (en) 2006-05-25 2011-01-18 Nike, Inc. Article of footwear having an upper with thread structural elements
US7574818B2 (en) 2006-05-25 2009-08-18 Nike, Inc. Article of footwear having an upper with thread structural elements
US8893405B2 (en) 2006-05-25 2014-11-25 Nike, Inc. Article of footwear incorporating tensile strands with an elongated cross-sectional shape
USD557883S1 (en) * 2006-06-29 2007-12-25 Columbia Insurance Company Outsole for a shoe
US20080078106A1 (en) * 2006-10-02 2008-04-03 Donna Ilene Montgomery Shoe for enhanced foot-to-ground tactile sensation and associated method
US20080127512A1 (en) * 2006-12-01 2008-06-05 Paul Barclay Sizing system for boots and shoes and article therefor
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BR102015021106B1 (pt) * 2015-08-31 2020-12-15 A. Grings S.A. calçado auto dimensionável
US10130137B2 (en) * 2016-07-22 2018-11-20 D'Wayne Edwards Flexible footwear article and method of manufacture
FR3064893B1 (fr) * 2017-04-06 2019-12-27 Ladinvest Chaussure adaptable
USD858963S1 (en) * 2017-11-13 2019-09-10 Nike, Inc. Shoe
USD872432S1 (en) * 2018-05-18 2020-01-14 Nike, Inc. Shoe
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JP7679092B2 (ja) * 2020-05-18 2025-05-19 サンオジーゾ プライベート リミテッド ３サイズ以上の着用者／ユーザの足で成長することができる改良された伸縮可能な靴
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Cited By (29)

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US20060225186A1 (en) * 2005-04-11 2006-10-12 Davenport Ronald K Ergonomic bed/slipper-sock
US20090208113A1 (en) * 2005-06-27 2009-08-20 Comodo Technologies, Ltd. Automated shoe fitting using shoe and adapter system
US8406454B2 (en) * 2005-06-27 2013-03-26 Comodo Technologies Ltd. Method and system for customized shoe fitting based on common shoe last using foot outline comparison and interchangeable insole adaptors
US20090249648A1 (en) * 2007-07-09 2009-10-08 Brown Ashley J Golf shoe outsole
US7673400B2 (en) * 2007-07-09 2010-03-09 Acushnet Company Golf shoe outsole
US20090193685A1 (en) * 2008-01-31 2009-08-06 Patient Pedro Llc Flexible footwear
US8245420B2 (en) * 2008-01-31 2012-08-21 Patient Pedro Llc Flexible footwear
US20120174433A1 (en) * 2011-01-10 2012-07-12 Saucony, Inc. Articles of Footwear
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EP1411792A1 (fr) 2004-04-28
ATE292902T1 (de) 2005-04-15
DE60203716D1 (de) 2005-05-19
US20040148804A1 (en) 2004-08-05
DE60203716T2 (de) 2006-03-09
EP1411792B1 (fr) 2005-04-13
WO2003013301B1 (fr) 2003-11-20
ITTV20010107A1 (it) 2003-02-03
ES2242878T3 (es) 2005-11-16
WO2003013301A1 (fr) 2003-02-20

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